A NASA expected the meteor to be the size of the nuclear bomb dropped on Hiroshima in World War Two.
B The explosion of a meteor before entering Earth's atmosphere hurt more than a thousand people in Chelyabinsk.
C Divers managed to find a 55 feet fragment in a lake near the city of Chelyabinsk.
D The shockwave of the fireball traveling at a speed of 30 km per second caused fatal flooding in Russia.
E A 55-foot meteor is expected to enter Earth's atmosphere in 100 years time.